291 lines
6.1 KiB
Smalltalk
291 lines
6.1 KiB
Smalltalk
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#include 'Stix.st'.
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#################################################################
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## MAIN
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#################################################################
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## TODO: use #define to define a class or use #class to define a class.
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## use #extend to extend a class
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## using #class for both feels confusing.
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#extend Stix
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{
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}
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#extend SmallInteger
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{
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#method getTrue: anInteger
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{
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^anInteger + 9999.
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}
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#method inc
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{
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^self + 1.
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}
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}
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#class TestObject(Object)
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{
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#dcl(#class) Q R.
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#dcl(#classinst) t1 t2.
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}
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#class MyObject(TestObject)
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{
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#dcl(#class) C B A.
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#method getTrue
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{
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^true.
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}
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#method getTrue: anInteger
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{
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^ anInteger
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}
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#method getFalse
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{
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^false
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}
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#method yyy: aBlock
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{
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| a |
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a := aBlock value.
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^a + 99.
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##a := Stix.MyCOM.HashTable new.
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}
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#method xxx: aBlock
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{
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| a |
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a := self yyy: aBlock.
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'KKKKKKKKKKKKKKKKKKKKKKKKKKKKK' dump.
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^a.
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}
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#method(#class) main2
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{
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| a b c sum |
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## ##(10 add: 20) dump.
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## (10 + 20) dump.
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##
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## a := 10 + 20 + 30.
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## b := [:x :y | | t z | x := 20. b := 9. x := 10 + 20 ].
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##
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## (b value: 10 value: 20) dump.
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##
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## thisContext basicSize dump.
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##
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## (thisContext basicAt: (8 + 5)) dump.
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##
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## ^self.
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a := self new.
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##a yourself.
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##b := a getTrue; getFalse.
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##b := a getTrue; getFalse; getTrue: 20 + 10.
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##b := a getTrue; getFalse; getTrue: 20 + 10; getTrue: 90 + 20.
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##b := 3 + 5 getTrue: 20; getTrue: 8 + 1; getTrue: 20; yourself.
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b := 3 + 5 inc getTrue: 20 + (30 getTrue: 20; yourself); yourself.
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##b := [:q | q ] value: a getTrue.
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b dump.
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##^self.
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## ############################################################
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## A := 99.
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[:x :y | R := y. ] value: 10 value: 6.
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R := R + 1.
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R dump.
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sum := [ :n | (n < 2) ifTrue: [1] ifFalse: [ n + (sum value: (n - 1))] ].
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##sum := [ :n | (n < 2) ifTrue: [1] ifFalse: [ n + (sum value: (n - 1)) + (sum value: (n - 2))] ].
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(sum value: R; value: 5) dump.
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##sum := [ :n | sum value: 5 ].
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##sum value: 5.
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#[ 1 2 3] dump.
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#[ 4 5 6] dump.
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#(abc:def: 2 'string is good' 3 4 (5 6) (7 (8 9)) 10) dump.
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#([] #[]) dump.
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a := #(abc:def: -2 'string is good' 3 #[2 3 4] 4 (5 6) (7 (8 [4 56] 'hello' 9)) 10 -93952 self true false nil thisContext super).
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a at: 3 put: 'hello world'; dump.
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a := self new.
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(a xxx: [888]) dump.
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20 dump.
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b := 0.
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[ b < 9 ] whileTrue: [ b dump. b := b + 1 ].
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S'hello \t\u78966\u8765\u3456\u2723\x20\123world\uD57C\uB85C\uC6B0' dump.
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C'\n' dump.
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#abc:def: dump.
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##a := (11 < 10) ifTrue: [5] ifFalse: [20].
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##a dump.
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}
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#method(#class) main55
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{
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|a b c|
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self main2.
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## b := 0.
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## [ b < 5 ] whileTrue: [ b dump. b := b + 1 ].
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}
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#method(#class) getTen
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{
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^10
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}
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## ---------------------------------------------------------------------------
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" this sample demonstrates what happens when a block context returns to the origin's caller
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after the caller has already returned. "
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#method(#class) xxxx
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{
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| g1 g2 |
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t1 dump.
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t2 := [ |tmp| g1 := 50. g2 := 100. tmp := g1 + g2. tmp dump. ^tmp ].
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(t1 < 100) ifFalse: [ ^self ].
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t1 := t1 + 1.
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self xxxx
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}
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#method(#class) yyyy
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{
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|c1|
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t1 := 1.
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c1 :=self xxxx.
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888 dump.
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999 dump.
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^c1.
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}
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#method(#class) main66
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{
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self yyyy.
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t2 := t2 value. "can t2 return? it should return somewhere into the method context of yyy. but it has already terminated"
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t2 dump.
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}
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#method(#class) mainj
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{
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|k1|
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t1 := 1.
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self xxxx.
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t2 := t2 value. "can t2 return? it should return somewhere into the method context of yyy. but it has already terminated"
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t2 dump.
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}
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## ----------------------------------------------------------------------
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#method(#class) main
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{
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|a b c d e f g h i j k sum |
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sum := [ :n | (n < 2) ifTrue: [1] ifFalse: [ n + (sum value: (n - 1))] ].
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(sum value: 5) dump.
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'-------------------------' dump.
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b := 0.
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[ b < 2000 ] whileTrue: [ b dump. b := b + 1 ].
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'-------------------------' dump.
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b := 0.
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[ b < 10 ] whileTrue: [ b dump. b := b + 1 ].
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'-------------------------' dump.
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a := #[4 5 6 7] at: 3.
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(#[3 2 1] at: 3) dump.
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## thisContext value. "the message value must be unresolvable as thisContext is a method context"
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## [thisContext value] value.
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'-------------------------' dump.
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b := 0.
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[ b := b + 1. b dump. thisContext value] value.
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[self getTen] value dump.
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}
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}
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"
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[ a := 20. b := [ a + 20 ]. b value. ] value
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^ ^ ^ ^
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p1 p3 p4 p2
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--------------------------------------------------------------------------------
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AC
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--------------------------------------------------------------------------------
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mc1<active>
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mc1->sender := fake_initial_context.
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mc1->home := nil.
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mc1->origin := mc1.
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mc1 p1 -> bc1 is created based on mc1 (mc1 blockCopy:)
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bc1->caller := nil
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bc1->origin := mc1.
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bc1->home := mc1. (the active context is a method context. so just use it as a home).
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bc1->source := nil.
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mc1 p2 -> bc2 is shallow-copied of bc1. (bc1 value)
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bc2->caller := mc1. (mc1 is the active context at p2 time)
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bc2->origin := bc1->origin.
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bc2->home := bc1->home.
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bc2->source := bc1.
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bc2 bc3 is created based on bc2. (bc2 blockCopy:)
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bc3->caller := nil
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bc3->origin := bc2->origin
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//bc3->home := bc2.
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bc3->home := bc2->source. (the active context is a block context. take from the block context's source */
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bc3->source := nil.
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bc2 bc4 is shallow-copied of bc3. (bc3 value)
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bc4->caller := bc2. (bc2 is the active context at p2 time)
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bc4->origin := bc3->origin
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bc4->home := bc3->home
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bc4->source = bc3.
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bc4.
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--------------------------------------------------------------------------------
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'home' is set when the context is created by blockCopy.
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'caller' is set when the context is activated.
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all 'origin' fields point to mc1 as a result.
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self represents the receiver. that is bc->origin->receiver which is mc1->receiver.
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--------------------------------------------------------------------------------
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#method ifTrue: trueBlock
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{
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^trueBlock value.
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}
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#method whileTrue: aBlock
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{
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(self value) ifTrue: [aBlock value. self whileTrue: aBlock].
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}
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[ b < 10 ] whileTrue: [ b dump. b := b + 1 ].
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"
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